$.$ A rectangular channel with a base b$=2\mathrm{.}5$ m has two lower slopes. The upstream slope portion is $200$ m long and S $=0\mathrm{.}025.$ The downstream portion is $600$ m long and So $=0\mathrm{.}0002.$ n$=0\mathrm{.}012.$ A flow rate of $25$ m$^3/$s enters a critical depth from a reservoir at the upstream end. At the downstream end of the system, the water depth is $2$ m$.$ Determine the water surface profiles including the location of the HJ$($Hydraulic Jump$)$ and compare with the program Hec$-$Ras, put the images of the program and the analytical solution